/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Public/PartyBeaconHost.h
Get the current reservation count inside the beacon NOTE: This isNOTthe same as the number of consumed reservations across all parties, just the total number of reservations!
number of reservations inside the beacon (NOTnumber of consumed reservations)
virtual int32 GetReservationCount() const